All-cause mortality and risk factors in a cohort of retired military male veterans, Xi'an, China: an 18-year follow up study

Table 4 Hazard Ratio and 95% CI of continuous variables into 4 categories for all cause mortality

	Deaths	HR	95% CI	P	P for trend
age(year)	491				<0.001
≤ 59	75	1.000
59–62	102	1.453	1.077–1.960	0.015
63–66	130	2.131	1.077–2.835	<0.001
≥ 66	184	3.405	2.599–4.462	<0.001
smoking status*	491
non smokers	126	1.000
former smokers	193	1.089	0.865–1.372	0.467
current smokers	172	1.369	1.083–1.731	0.009
smoking index	172				<0.001
<350	34	1.000
350–569	29	1.163	0.901–1.501	0.2457
570–749	48	1.531	1.188–1.974	0.001
≥ 750	61	2.069	1.642–2.606	<0.001
age of starting smoking(year)	365				0.038
<19	101	1.000
19–22	109	0.823	0.627–1.078	0.157
23–27	74	0.763	0.565–1.029	0.077
>27	81	0.720	0.537–0.966	0.028
cigarettes per day(number)	365				<0.001
1–9	49	1.000
10–14	32	1.093	0.700–1.707	0.694
15–19	130	1.316	0.947–1.828	0.101
≥ 20	154	1.831	1.327–2.527	0.001
BMI(kg/m²)^Δ	491
<18.5	24	2.033	1.329–3.110	0.001
18.5–23.9	188	1.000
24–27.9	221	1.030	0.847–1.251	0.769
≥ 28	58	1.203	0.896–1.615	0.219
systolic blood pressure(mmHg)	491				<0.001
<120	95	1.000
120–129	134	1.148	0.882–1.494	0.306
130–139	89	1.509	1.129–2.017	0.005
≥ 140	173	1.610	1.253–2.070	0.001
triglycerides(mg/dl)	491				<0.001
<90	101	1.000
90–122	117	1.251	0.958–1.634	0.100
123–151	142	1.647	1.275–2.128	0.001
≥ 152	131	1.435	1.106–1.862	0.007

*Adjusted for age, systolic blood pressure, BMI, total cholesterol, triglycerides, regular alcohol consumption, Exercise, as well as existing disease at baseline; ^ΔBMI was grouped by Chinese standard.

ISSN: 1471-2458